MIL-B-81936 (AMENDMENT-4), MILITARY SPECIFICATION: BEARINGS, PLAIN, SELF-ALIGNING (BECU BALL, CRES RACE) GENERAL SPECIFICATION FOR (17-NOV-1989) [S/S BY SAE-AS81936]

MIL-B-81936 (AMENDMENT-4), MILITARY SPECIFICATION: BEARINGS, PLAIN, SELF-ALIGNING (BECU BALL, CRES RACE) GENERAL SPECIFICATION FOR (17-NOV-1989) [S/S BY SAE-AS81936].,